The 50th single 11 Gatsu no Anklet (11月のアンクレッ) by AKB48 will be released on November 22nd.

This is the last single with popular member Watanabe Mayu who will leave the group in December. She is a central member on this single and even performs a solo song Sayonara de Owaru Wake ja Nai (her graduation song).

This announcement was made by herself on August 21 during a concert celebrating the 2nd anniversary of the NGT48 at the Niigata City History Museum.

Kitahara Rie, nicknamed Kitarie (きたりえ), is the captain of Team NII from NGT48 since 2016. She joined AKB48 in October 2007 as a trainee member (Kenkyuusei) and a 5th generation member of AKB48 ; she was transferred to Team A in 2008 for her debut, Team B in 2009 and Team K as vice-captain in 2012. She became a member of the Team S from SKE48 in 2012 before being transferred to NGT48 in 2015.